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<refentry xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xi="http://www.w3.org/2001/XInclude"
xml:id="sec-nix-pull">
<refmeta>
<refentrytitle>nix-pull</refentrytitle>
<manvolnum>1</manvolnum>
<refmiscinfo class="source">Nix</refmiscinfo>
<refmiscinfo class="version"><xi:include href="version.txt" parse="text"/></refmiscinfo>
</refmeta>
<refnamediv>
<refname>nix-pull</refname>
<refpurpose>pull substitutes from a network cache</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>nix-pull</command>
<arg choice='plain'><replaceable>url</replaceable></arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsection><title>Description</title>
<para>The command <command>nix-pull</command> obtains a list of
pre-built store paths from the URL <replaceable>url</replaceable>, and
for each of these store paths, registers a substitute derivation that
downloads and unpacks it into the Nix store. This is used to speed up
installations: if you attempt to install something that has already
been built and stored into the network cache, Nix can transparently
re-use the pre-built store paths.</para>
<para>The file at <replaceable>url</replaceable> must be compatible
with the files created by <replaceable>nix-push</replaceable>.</para>
</refsection>
<refsection><title>Examples</title>
<screen>
$ nix-pull http://nix.cs.uu.nl/dist/nix/nixpkgs-0.5pre753/MANIFEST</screen>
</refsection>
</refentry>
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